• Conference Object  

      Adaptive agent negotiation via argumentation 

      Kakas, Antonis C.; Moraïtis, Pavlos (2006)
      In this paper, we study how argumentation can be used as a basis for negotiation between autonomous agents, where negotiation strategies of the different parties are represented as argumentation theories within their ...
    • Article  

      Adaptive virtual circuit routing 

      Economides, Anastasios A.; Ioannou, Petros A.; Silvester, J. A. (1996)
      The paper deals with the adaptive routing problem in virtual circuit communication networks. A newly arriving call at a source node is routed along the minimum length path to its destination node. All packets belonging to ...
    • Conference Object  

      An approach for developing adaptive, mobile applications with separation of concerns 

      Paspallis, Nearchos; Papadopoulos, George Angelos (2006)
      Modern mobile computing paradigms have set new challenges for the development of distributed mobile applications and services. Because of the variability which characterizes the context of such environments, it is important ...
    • Conference Object  

      A basis for performance property prediction of ubiquitous self-adapting systems 

      Brataas, G.; Floch, J.; Rouvoy, R.; Bratskas, Pyrros; Papadopoulos, George Angelos (2007)
      Utility-based adaptation approaches permit to determine the "best" suited variant of an application at run-time. Utility policies are usually specified in terms of resources and QoS dimensions. Although utility policies ...
    • Article  

      Capturing essential intrinsic user behaviour values for the design of comprehensive web-based personalized environments 

      Germanakos, Panagiotis; Tsianos, Nikos; Lekkas, Zacharias; Mourlas, Constantinos; Samaras, George S. (2008)
      Advances in Web-based oriented technologies and services are taking place with a considerable speed around the world. As communications and IT usage become an integral part of many people's lives and the available products ...
    • Conference Object  

      Decentralized fault accommodation of a class of interconnected nonlinear systems using an adaptive approximation approach 

      Panagi, P.; Polycarpou, Marios M. (2009)
      This paper presents a decentralized adaptive approximation design for the fault tolerant control of interconnected subsystems. We consider faults that occur in the subsystems local dynamics as well as in the interconnection ...
    • Article  

      Dynamic adaptive data structures for monitoring data streams 

      Aguilar-Saborit, J.; Trancoso, Pedro; Muntes-Mulero, V.; Larriba-Pey, J. L. (2008)
      The monitoring of data streams is a very important issue in many different areas. Aspects such as accuracy, the speed of response, the use of memory and the adaptability to the changing nature of data may vary in importance ...
    • Article  

      Experiences from developing a distributed context management system for enabling adaptivity 

      Paspallis, Nearchos; Chimaris, Avraam N.; Papadopoulos, George Angelos (2007)
      Today, one can observe an ever increasing trend in the use of mobile systems. This change inevitably affects the software running on such devices by necessitating additional functionality such as context awareness and ...
    • Conference Object  

      FRES-CAR: An adaptive cache replacement policy 

      Pallis, George C.; Vakali, Athena I.; Sidiropoulos, E. (2005)
      Caching Web objects has become a common practice towards improving content delivery and users' servicing. A Web caching framework is characterized by its cache replacement policy, which identifies the objects (i.e. the ...
    • Conference Object  

      Identifying failures in grids through monitoring and ranking 

      Zeinalipour-Yazdi, Constantinos D.; Neocleous, Kyriacos; Georgiou, Chryssis; Dikaiakos, Marios D. (2008)
      In this paper we present FailRank, a novel framework for integrating and ranking information sources that characterize failures in a grid system. After the failing sites have been ranked, these can be eliminated from the ...
    • Conference Object  

      Indirect adaptive control for systems with input rate saturation 

      Kahveci, N. E.; Ioannou, Petros A. (2008)
      An indirect adaptive control design with anti-windup augmentation for stable systems subject to input magnitude saturation is extended to address systems with significant input rate constraints. We use the method of ...
    • Conference Object  

      Multimedia content adaptation: Operation selection in the MPEG-21 framework 

      Sofokleous, Anastasis A.; Angelides, Marios C.; Schizas, Christos N. (2005)
      Whilst many content adaptation operations exist and a number of different approaches are currently being proposed, selecting the right content adaptation operation is largely an ad hoc process. In this paper we discuss ...
    • Article  

      An optimization of context sharing for self-adaptive mobile applications 

      Paspallis, Nearchos; Papadopoulos, George Angelos (2008)
      Because of the high potential of mobile and pervasive computing systems, there is an ongoing trend in developing applications exhibiting context awareness and adaptive behavior. While context awareness guarantees that the ...
    • Conference Object  

      Putting context in context: The role and design of context management in a mobility and adaptation enabling middleware 

      Mikalsen, M.; Floch, J.; Stav, E.; Paspallis, Nearchos; Papadopoulos, George Angelos; Ruiz, P. A. (2006)
      The operating context of mobile applications and services is constantly changing. In order to achieve higher levels of usability, mobile applications and services need to adapt to changes in context. This paper argues the ...
    • Conference Object  

      Selecting Long Atomic Traces for High Coverage 

      Rosner, R.; Moffie, M.; Sazeides, Yiannakis; Ronen, R. (2003)
      This paper performs a comprehensive investigation of dynamic selection for long atomic traces. It introduces a classification of trace selection methods and discusses existing and novel dynamic selection approaches - ...
    • Article  

      User-centric profiling on the basis of cognitive and emotional characteristics: An empirical study 

      Tsianos, Nikos; Lekkas, Zacharias; Germanakos, Panagiotis; Mourlas, Constantinos; Samaras, George S. (2008)
      In order to clarify whether extending learners' profiles in an adaptive educational system to cognitive and emotional characteristics may have a positive effect on performance, we conducted an empirical study that consists ...
    • Article  

      Using adaptive networks to model and control drug delivery 

      Conway, J. Y.; Polycarpou, Marios M. (1996)